Re: Lintian info message "hardening-no-bindnow" with vanilla debian/rules

[Gregor Riepl <onitake@gmail.com>]

> I: python3-pyxdameraulevenshtein: hardening-no-bindnow [usr/lib/python3/dist-packages/pyxdameraulevenshtein.cpython-310-x86_64-linux-gnu.so]
>
> and there is nothing about CFLAGS or the like in the setup.py file.
> So if having this hardening flag enabled is a good thing, it should
> probably be enabled somewhere within the pybuild system, rather than
> every individual package with an extension file doing it.

Hardening is generally a good thing, but can break code in subtle ways.
I suppose that's why it was decided that enabling it by default in 
Debian was deemed too risky.

Enabling it is quite easy, though: Just add

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

near the top of your d/rules file. Some build systems may require 
additional flags, as documented here: https://wiki.debian.org/Hardening

Also, note that hardening-no-bindnow is an Informational message, so not 
strictly something that needs to be acted upon: 
https://lintian.debian.org/tags/hardening-no-bindnow

YMMV.